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The authors describe a male patient aged 22 years with primary infectious endocarditis which was marked by nonspecific manifestations in the form of tendovaginitis, myalgia and arthralgia. Early surgical treatment of the disease and its complications brought about an appreciable improvement in the patient's condition and restored his work fitness.

Altogether 56 patients with occlusive abdominal aortic lesions and concomitant CHD were examined by radionuclide ventriculography on a nuclear stethoscope. Suppression of left ventricular systolic and diastolic function was noted in the patients with CHD and arterial hypertension. Investigations of cardiohemodynamics using the above method made it possible to identify patients with limited functional cardiac reserve, to predict possible myocardial complications, and to take preventive measures before, during and after reconstructive interventions on the abdominal aorta.

The antihypertensive effect of unilateral adrenalectomy was analyzed in 19 patients with arterial hypertension and primary hyperaldosteronism diagnosed by way comparing clinical findings, a degree of hypokalemia, activity of plasma renin and aldosterone concentration and CT data. A follow-up period after operation was 8-14 mos. Clinical and biochemical findings were compared with the results of morphological investigation of the adrenal glands and kidneys. An antihypertensive postoperative effect was observed in 12 patients: good in 6, moderate in 6, the absence of an antihypertensive effect in 7. Different forms of adrenocortical hyperplasia revealed during histomorphological investigation, endocrine nephropathy of various degree and vascular changes of hypertensive genesis in the renal parenchyma were discussed as causes of residual hypertension.

Altogether 70 patients with thoracic aortic aneurysms were investigated. Of them 23 (32.9%) were investigated with prior diagnostic errors. In 13 patients the diagnosis of thoracic aortic aneurysm was made during erroneously performed thoracotomies (12 patients) and laparotomies (one patients). Diagnostic errors leading to bad tactical mistakes, were caused by insufficient patients' examination and wrong interpretation of x-ray findings.